CCTV tester PRO
User
’
s Manual
Page.20
.
⑵
SYMBOLS
：
U
：
DC Voltage Measuring
U
~
：
AC Voltage Measuring
A
：
DC Current
Measuring
A
~
：
AC Current Measuring
Ω
：
Resistance Measuring
：
Continuity Testing
：
Diode Testing
：
Capacitance Measuring
⑶
OPERATING INSTRUCTION
A. DC Voltage Measuring
a. Connect the black test lead to the COM jack and the red test lead to the V jack.
b. Press
to select
U
, enter the DC voltage measurement. Auto range by press
key,
and Manual range by press
.
Manual range： 0.000V
6.6V range
00.00V
66V range
000.0V
660V range
000.0mV
660mV range
c. Connect test leads across the source or load under measurement.
d. You can get reading from LCD. The polarity of the red lead connection will be in dicated along with
the voltage value.
NOTE:
When only the figure “OL” is displayed, it indicates over range situation and the higher range has
to be selected.
When the value scale to be measured is unknown beforehand, set the range selector at the highest
position.
WARNING!
You can’t input the voltage which more than 660V DC, it’s possible to show higher voltage,
but it’s may destroy the inner circuit.
Pay attention not to get an electric shock when measuring high voltage.
